SANWA Bluetooth Wireless Ergonomic Trackball Mouse, Optical Rollerball Mice, Programmable Silent Buttons, 40mm Trackball, 600/800/1200/1600 DPI, Compatible with MacBook, Laptop, Windows, macOS - SANWA SUPPLY, GMABTTB41

• 【ERGONOMIC TRACKBALL DESIGN】- Equipped with 40mm trackball and sensitive 3-dot positioning tech, precise thumb control to move the cursor, no need for frequent wrist movement. Technical 19° tilt angle keeps your wrist and shoulder in natural lines and helps to reduce muscle stress, wrist pain, RSI, and carpal tunnel syndrome. Perfect for drawing, typing, working, playing, etc. 【SILENT & DPI ADJUSTABLE】- This Bluetooth track ball mouse supports 4 levels cursor movement speed: 600/800/1200/1600. Suit different tasks, ensuring accuracy & speed. Press the middle DPI button to change it faster or slower. Features noiseless click on left/right button, suitable for usage in quiet places like public occasions, libraries, meetings, cafeterias, or at night. 【2 DEVICES CONNECTION】- This ball mouse supports 2 Bluetooth modules, simultaneously connecting and switching between 2 devices. Powered by 2 batteries(Not Included). Wireless design for maximum portability. 【PROGRAMMABLE WITH SOFTWARE】- The ergonomic trackball mouse is programmable for different functions. Download SANWA Trackball mouse software to customize your mouse buttons and increase work efficiency(find it in the user manual). Note: 1. The software does not work with Mac OS or Chrome OS. 2. Programmable function works when the software on. 【VARIOUS COMPATIBLE SYSTEMS】- Excellent computer trackball mouse, work with PC, Mac, pad, laptop, and phones. Compatible with Windows 11/10/8.1/87, mac0S 12/11/10.12~10.15, Chrome OS, Android 7-11, iPad OS 13~14, IOS 13-14, and the versions below.